represent ways of representing subject matter. Equations are symbolic representations of subject matter which when interpreted correctly can result in conceptual understanding. For example‚ the equation φ = BA can be used to define magnetic flux as: product of magnetic field strength and the area enclosed by a conductor. This equation can also be used to identify the
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PHYS 2102 Final Exam Fall 2008 Name :________________________ Student # : _________________________ Section (circle one): 001 (Dr. Leilabady) 002 (Dr. Astratov) 092 (Dr. Aktas) You have 2 ½ hours to complete your answers There are 12 questions‚ 10 points each Exam graded out of 100 points (i.e. there is up to 20% bonus opportunity) This is a closed book exam. I understand I am not to use any notes or information other than on this exam sheet. I may use a pocket calculator
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9.2 Space Students learn to: Students: 1. The Earth has a gravitational field that exerts a force on objects both on it and around it define weight as the force on an object due to a gravitational field perform an investigation and gather information to determine a value for acceleration due to gravity using pendulum motion or computer-assisted technology and identify reason for possible variations from the value 9.8 ms-2 gather secondary information to predict the value of acceleration
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Thales of Miletus‚ who lived from about 625 BC to about 545 BC.[1] Around the same time‚ in ancient India‚ the Indian surgeon‚ Sushruta‚ was the first to make use of the magnet for surgical purposes.[2] There is some evidence that the first use of magnetic materials for its properties predates this‚ J. B. Carlson suggests that the Olmec might have used hematite as a magnet earlier than 1000BC[3] [4] In ancient China‚ the earliest literary reference to magnetism lies in a 4th-century BC book named
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microfarad (c) 700f (d) 6.4 X10^6 f 1score 3. write the relation between dielectric constant and electric susceptibility. 1score 4. A box encloses an electric dipole consisting of charge 5micro C and -5micro C and of length 10cm. What is the total electric flux through the box? 2scores 5. Find the ratio of the p.d that must be applied across the (1)parallel (2) series combination of two identical capacitors so that the energy stored in the two cases becomes the same. 2 scores 6.(a)
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An Introduction to Engineering and Practices Laboratory Manual For Experiment E2 Magnetic Field Laboratory : Power and Clean Energy Design Laboratory Location: S2-B5c-02 School of Electrical and Electronics Engineering [EEE] Session 2014/2015 (For Safety reasons‚ student wearing slippers‚ sandals‚ or other loose footwear are NOT allowed to enter the laboratory) 1 FE1073-E2 MAGNETIC FIELD 1. OBJECTIVES When current exists in an infinitely long straight wire‚ a B field
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fields 1.2.3. Faraday’s law 1.3. Electromagnetic theory in a moving frame 1.4. Ohm’s law‚ induction equation and boundary conditions 1.4.1. Lorentz force 1.4.2. Induction equation 1.4.3. Boundary conditions 1.5. Nature of the induction equation: Magnetic Reynolds number 1.6. The kinematic dynamo problem 1.7. Vector potential‚ Toroidal and Poloidal decomposition. 1.7.1. Vector Potential 1.7.2. Toroidal-Poloidal decomposition 1.7.3. Axisymmetric field decomposition 1.7.4. Symmetry 1.7.5. Free
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charged circular disc-Electric Field due to an infinite uniformly charged sheet. Electric Scalar Potential-Relationship between potential and electric field-Potential due to infinite uniformly charged line-Potential due to electrical dipole-Electric Flux Density-Gauss Law-Proof of Gauss Law-Applications. Objective: To analyze field potentials due to static charges. |Session No. |Topics to be covered |Time |Ref |Teaching
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power runs through a set of coils and creates a magnetic field that actuates an arm inside and closes the circuit. Relays are used as switches to control larger circuits with more power. Since a relay is able to control an output circuit of higher power than the input circuit‚ it can be considered to be a form of an electrical amplifier. When using a relay in a dc current‚ diodes are put in across the coil to dissipate energy from the collapsing magnetic field at deactivation‚ which would cause a spike
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(corresponding to the rail tracks of conventional railways) by using electromagnetic forces between superconducting magnets on board the vehicle and coils on the ground. The following is a general explanation of the principle of Maglev. fig. 1.1 1.1.1 Magnetic Levitation The "8" figured levitation coils are installed on the sidewalls of the guideway. When the on-board superconducting magnets pass at a high speed about several centimeters below the center of these coils‚ an electric current is induced within
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